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Selwyn_Times: July 06, 2022

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Wednesday <strong>July</strong> 6 <strong>2022</strong> <strong>Selwyn</strong> <strong>Times</strong><br />

• By Georgia O’Connor-<br />

Harding<br />

THE FOG of the earthquakes<br />

is finally lifting for resilient<br />

Cantabrians.<br />

New research from the University<br />

of Otago, Christchurch,<br />

has found the brain function<br />

of otherwise-healthy individuals<br />

living through a traumatic<br />

event has the ability to bounce<br />

back over time.<br />

An initial study conducted<br />

about three years post-quake<br />

found a group of Cantabrians<br />

who didn’t develop psychological<br />

difficulties were still<br />

experiencing issues with<br />

cognitive function including<br />

memory and attention.<br />

But 10-11 years on from<br />

the earthquakes, researchers<br />

found that same group overcame<br />

those issues.<br />

Senior research fellow Dr<br />

Katie Douglas said it shows<br />

time does heal which is promising<br />

and hopeful for those<br />

that experienced that trauma.<br />

“This is good news as it offers<br />

preliminary evidence that<br />

there are no long-lasting effects<br />

on cognitive impairment<br />

after exposure to a traumatic<br />

event, at least in people who<br />

don’t develop a mental health<br />

condition.<br />

“It suggests changes in their<br />

cognitive functioning and<br />

Latest Canterbury news at starnews.co.nz<br />

emotion processing may be<br />

related to exposure to continued<br />

threat in the environment,<br />

which improves when the<br />

threat resolves,’ she said.<br />

Douglas said the findings<br />

back up similar international<br />

studies which show the brain’s<br />

ability to recover once<br />

distanced in time from the<br />

original trauma.<br />

“When the original studies<br />

were conducted, people were<br />

living in an environment<br />

of ongoing seismic activity<br />

where, over a two-year period,<br />

Canterbury experienced over<br />

10,000 aftershocks.<br />

“The fact that residents were<br />

in a chronically hyper-aroused<br />

state may have resulted in biological<br />

changes in the brain,<br />

such as in the amygdala,<br />

which is responsible for processing<br />

strong emotions. By<br />

the time of the current study<br />

however, there was no seismic<br />

activity and the sense of threat<br />

had abated.”<br />

Study co-author, Associate<br />

Professor Caroline Bell, also<br />

from the University of Otago,<br />

Christchurch, says the study<br />

adds to the growing body of<br />

international research relating<br />

to how large groups in society<br />

NEWS 15<br />

Quake brain fog fades over time – study<br />

EFFECT:<br />

September<br />

4, 2010,<br />

earthquake<br />

damage to<br />

Highfield<br />

Rd, Charing<br />

Cross. A study<br />

eleven years<br />

after the event<br />

has found<br />

Cantabrians<br />

are overcoming<br />

psychological<br />

difficulties.<br />

react and respond following<br />

traumatic situations.<br />

“These findings give us a<br />

sense of the effects of exposure<br />

to major threats from disasters<br />

such as earthquakes on wider<br />

populations.<br />

“They are reassuring in<br />

showing that a resilient response<br />

is the most prevalent.<br />

They also suggest, conversely,<br />

that persisting impairments in<br />

threat sensitivity and cognitive<br />

functioning may affect<br />

people’s productivity and<br />

could potentially be a target<br />

for intervention,” she said.<br />

– NZ Herald<br />

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